Finding the Fourth Proportional to 878,344.35, 1,211,869.38 and 551,692.68
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Solution
The fourth proportional to 878,344.35, 1,211,869.38 and 551,692.68 is: 761,181.50
Step by Step Solution
- Step 1: Write the proportion equation
878,344.35 : 1,211,869.38 = 551,692.68 : x - Step 2: Convert to fraction form
878,344.35/1,211,869.38 = 551,692.68/x - Step 3: Cross multiply
878,344.35x = 1,211,869.38 × 551,692.68 - Step 4: Simplify right side
878,344.35x = 668,579,466,062.14 - Step 5: Solve for x
x = 668,579,466,062.14/878,344.35 - Step 6: Final answer
x = 761,181.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.